1,721,040 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Get PDF
    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

    Get PDF
    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Early diagnosis of intrahepatic pseudoaneurysm during radiofrequency ablation using contrast-enhanced ultrasound

    No full text
    Radiofrequency ablation is one of the more established forms of local treatment in patients with unresectable tumours, including colorectal hepatic metastases. Complications associated with this method of intervention include thermal and mechanical injuries, including vascular insults resulting in haemorrhage or pseudoaneurysm formation. This is the first case demonstrating the detection of post-ablation acute pseudoaneurysm formation identified on the table using contrastenhanced ultrasound (CEUS) and the subsequent successful management

    Appropriate Similarity Measures for Author Cocitation Analysis

    Get PDF
    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

    Get PDF
    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Author Index

    No full text
    Nao informado

    Family-Group Names for Termites (Isoptera)

    No full text
    ENGEL, MICHAEL S., KRISHNA, KUMAR (2004): Family-Group Names for Termites (Isoptera). American Museum Novitates 3432 (1): 1-12, DOI: 10.1206/0003-0082(2004)4322.0.CO;2, URL: http://www.bioone.org/perlserv/?request=get-abstract&doi=10.1206%2F0003-0082(2004)432%3C0001%3AFNFTI%3E2.0.CO%3B

    S Krishna Kumar 2023 PhD Thesis Supplementary Tables

    No full text
    These data files are a supplement in support of a thesis with the following abstract: Methods for processing the data: Pooled libraries were sequenced using HiSeqX 150 bp Pair End sequencing (Psomagen Inc, Rockville MD). Raw RNA-Seq reads were processed to remove adaptors and low-quality sequences using Trimmomatic (version 0.36; Bolger et al. 2014) with parameters ‘SLIDINGWINDOW:4:20 LEADING:3 TRAILING:3 MINLEN:40’ and to remove polyA/T tails using PRINSEQ++ [v1.2; (Cantu et. al. 2019) with parameters ‘-min_len 40 -trim_tail_left 10 -trim_tail_right 10’]. The remaining cleaned reads were aligned to the ribosomal RNA database (Quast et al. 2013) using Bowtie (version 1.1.2; Langmead, 2010) allowing up to three mismatches, and those aligned were discarded. The final cleaned reads were aligned to the ‘Golden Delicious’ double haploid (GDDH13) genome (v1.1; Daccord et al. 2017) using HISAT2 (version 2.1.0; Kim et al. 2019) with default parameters. Based on the alignments, raw read counts for each gene were calculated and then normalized to fragments per kilobase of exon model per million mapped fragments (FPKM). Raw read counts were then fed to DESeq2 to identify differentially expressed genes (DEGs) using a cutoff of adjusted P value < 0.05 and fold change ≥ 2. Gene ontology terms enriched in the lists of genes were identified using Blast2GO (Conesa et al. 2005) with a cutoff of adjusted P value < 0.05. Transcription factors were identified by using the blast tool in the genome database for Rosaceae and homolog comparisons with the Arabidopsis genome (Sook et al. 2018).Hatch Grant Cornell Atkinson Grant Boller Gran

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

    No full text
    We have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
    corecore